Peters



(No Model.)

W. P. WEST.

LEASE EOEMING DEVICE EOE WAEPING MACHINES. No. 370,435. Patente Sept.27, 188?.

due New I m1 Y N. PETERS PlmlvLmmgmptwr. washingmu. D; C.

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IVILLIAM FRANKLIN W'ES'I, OF IVES'I WARREN, MASSACHUSETTS, ASSIGNOR, BYMESNE ASSIGNMENTS, TO HIMSELF AND JAMES W. BROWN, OF SAME PLACE.

LEASE-FORMING DEVICE FOR WARPING-VIACHINES.

SPECIFICATION forming part of Letters Patent No. 370,435, datedSeptember 27, 1887.

Application filed May 14, 1887. Serial No. 238,199. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM FRANKLIN WEST, of WestVarren, in the countyof Worcester, of the Commonwealth of Massachusetts,l

be described in the following specification and' represented in theaccompanying drawings, of 1o which- Figure lis atop view, Fig. 2 a sideelevation, Fig. 3 a longitudinal section, and Fig. 4 a transversesection, of a portion of a machine embodying my invention, the nature ofwhich I5 is defined in the claim hereinafter presented. The plane ofsection of Fig. 4 is through the comb, to be described.

This machine, or the comb thereof, may be used separately from or inconnection with a 2o common warper, the comb and its operative mechanismin the latter case taking the place of the plain comb of such warper.

In the drawings, A represents a comb provided with a series of dents, aa a, &c., and b b b, &c., each of which stands vertically. Eachalternate dent b is furnished with a triangular projection, c, extendingfrom it and formed in manner as represented, the series of projectionsfor one half of the comb standgo ing in the opposite direction to thoseof the other half, as shown. Below each of the said projections, and ata short distance from it, there is between the two next adjacent dents afilling-piece, d. The base or bar e of the comb is adapted to slidevertically in suitable guides, f, and rests on two cams, g, each ofwhich is formed with offsets, as shown at li, i, and kin Fig. 4. Thesecams are fixed on a horizontal shaft, Z, supported in proper bearingsand provided at one end with a knob, m. The said offsets determine thepositions of the comb in order for it to produce the requireddecussations of the warp-yarns, as hereinafter explained. By taking holdof the knob and turning it, the shaft may be turned as may be necessaryto effect the proper rise or fall of the comb. The said warpyarns (shownat w) pass between the dents,and thence to a single guide, n, extendingfrom a post, o.

By depressing the comb the Warp yarns 5o that are immediately underneaththe triangular projections will be forced by them below the remainingwarp-yarns. Next a rod or bar should be inserted in the decussation thusformed and moved toward the guide n a sufi Iicient distance, and alease-string should be drawn in one direction through the decussation inadvance of the bar. Next the comb should be moved upward, so as to forcethe yarns that are directly underneath the trian- 6o gular projectionsdown upon the tops of the filling-pieces and above the remaining yarns,

so as to form asecond decussation, after which a bar is to be insertedthrough such second decussation and moved toward the guide n, and the 65 lease-string should be drawn through the said decussation in theopposite direction to what it was before introduced, and the two ends ofthe string should be tied togeth'er. Generally speaking, suchlease-strings are to be inserted, 7o as described, in the warp at suchdistances apart as may be desirable, the intervals between them beinggenerally vehundred yards,

or thereabout.

From the above it will be seen that with dispatch and to advantage, bythe single comb, as hcreinbefore described, decussations can be producedin the warp for the insertion of a lease-thread therein.

I claim- The leasecomb, substantially as described, provided with thefilling-pieces and the triangular projections applied to its dents,essentially in manner as represented, such comb being for use asexplained.

WILLIAM FRANKLIN wnsr.

Witnesses:

R. H. EDDY, S. N. PIPER.

